Do you know your A B Cs?
A - is for post 1972 Corning Ware, when they straightened the sides and widened the handles (
the lids have larger knobs too) Later, the stamp would be embossed under the handle.
B - is for Buffet Servers which sometimes have
Centura Lids on them... Merry Mushroom pattern was also marked with a B-
as were some of the Spice o' Life pieces (
These are round with
detachable handles)
C -
is for the Centura casserole/saucepan line, both round and square
shapes, in plain white and patterns like Summerhill, Lynnwood, April Tulip, Evening Song, Shangri-La and Laurel.
However, these items were discontinued in 1977. As a result
..........
C - was re-used for the Classic Elegance line in the mid 80's. The design is similar to French White, but without the vertical ribbing. These are printed
with designs like Mille Fleur (below left), Jardin, Deco (below right) and Sticks.
CW- is for the French White II line (mid 90s) which is designed similar to French White, but with flared sides. The pieces themselves are unmarked, however their lids give away their series designation.
DC - is for the Designer Casseroles from the late 70's which look similar to the French White line, minus the vertical ribbing. The 4 known designs are April, Blue Heather, Indian Summer and Meadow.
DO - is for the Cookmates flat ground bottom Dutch Oven made prior to 1972, when the KA prefix was added. Thus these have P series lugs. Usually found in white, these were sold with the "Counter that Cooks".
F - is for the French White line that appeared in 1978 and includes French White, French Bleu, Classic Black and French Bisque.
G - is for the original series letter given to the "Everyday Gourmet" line "French White". This letter designation was changed to the "F" series for French White shortly after the release.
H - is for Bake & Broil platters from the Casual Elegance Line (
L-series), I think. I have only seen one (
the H-15, below) and I bought the piece for my mother cause it
was the "Vineyard" design. (
She likes grape stuff)
I - is for the Australian exclusive casserole dishes. Of which there were two sizes; a 1 1/2 and a 2 1/2 quart marked as I-1 & I-2 respectively. They seem to have only been available in Cornflower, Spice O' Life and Wildflower.
JCP - is for the JC Penney exclusive khaki colored candlewicking design from around 1970. Only known pieces at this time are 1 quart (JCP-1B) and 2 1/2 cup Petite pan (JCP-43B). No further information is available at this time.
K - is for Cookmates.... See KA, below.
KA- is for Cookmates made for the "Counter that Cooks" made after 1972. These pieces have
flat ground bottoms like the SKs for the Electromatic Skillet and the SP, DO, SMs for "Counter that Cooks". These
are usually in all white and have A series lugs. Pieces are sometimes marked with a K only, as in the case of the Teapot & Kettle. The K or KA is usually followed by a second 2 letter abbreviation... TP for the Teapot, TK for the Tea Kettle, SK for Skillet, SP for Saucepan or DO for Dutch Oven
L - is for the flared rimmed Casual Elegance Line from the mid 90s with
the embossed decorations on the flared rims. (
ie. White Flora, Calypso
& Vineyard) These also have strange looking handles on their lids.
M - is for Microwave cookware. Such as the M-68 dual spout sauce pot. (Which I believe may have been the replacement for the original "Saucemaker" as well) It is unclear how many different pieces exist with only an M designation, as they were further broken down into MCs, MRs, and MWs depending on the intended function.
MC - is for Microwave Casserole dishes and includes grill pans (
that are not microwave browners) as well as the Fast Food containers.
MR - is for specialty Microwave Racks... I know of only the MR-1, MR-2 & MR-3.
MW - is for Microwave Browners. These are specially designed pieces with tin oxide applied to the bottom. These pieces are
preheated in the microwave so the tin oxide can heat up and brown your
food while you finish nuking it. While pieces, like griddles and platters had their own designations (MW-1, MW-2), some pieces, like skillets, were prefixed with MW. For instance, an A-10 "10 inch skillet", that had the Tin Oxide added to the bottom to convert it into a browner became... MW-A-10.
N - is for Rangetopper Saucepans & Skillets (
from mid-70's to early 80s) with the Aluminum fused bottom (
sometimes encased in pyroceram too)
P - is for the Original Corningware that ran from the 1962 through 1971;
though some pieces stayed P- models all the way through 1999 like the
Menuettes, Petites & Grab-its.
PP - is for the Cookmates Petite Pans with the flat ground bottoms. Dates of manufacture unknown as the petite pans did not change after 1972, but much later in the 90s when the tops of the lugs were flattened.
S - is for the round saucepans (
shaped like Visions) that are also known as Corning "Rangetop" (
not Rangetoppers) from the mid to late 80's with pyroceram handles (
instead of the detachable one) This change was made after Visions hit the market and the Visions style built in handle met with public approval. All of these are marked in liters instead of quarts. Though the name of the line is similar the S series does not have an aluminum clad bottom. Known pieces are S-81, S-1.5, S-2.5 saucepans and the S-10 skillet.
SK - is for the Original Electromatic Skillets pans and Cookmates with P series lugs and a flat ground bottom. (
SK-10) with no K or KA Cookmate designation. Made prior to 1972 when the KA prefix was added
SM - is for Cookmates Saucemakers with flat ground bottoms. These were made prior to 1972 when the KA prefix was added to the Cookmate line. I do not know if they were manufactured after 1972.
SP - is for Cookmates Saucepans with flat ground bottoms made prior to 1972 when the KA prefix was added, thus they have small P series lugs.
TP - is for Cookmates Teapot. Though usually prefixed with a K.
TK - is for Cookmates Tea Kettle with the flat ground bottom.
U - if for the mystery that just recently surfaced on the Corningware Facebook group... No idea, but they are out there. I saw a U-5 on eBay. The U appears to stand for "Unclad" rangetopper (meaning they contain no aluminum. Pieces range from the U-1-B, U-1 1/2-B, U-2 1/2-B and U-5-B. All of which look exactly like the N-series rangetoppers, minus the aluminum cladding on the bottom. To date, neither the 8 or 10 inch skillets have appeared in the U-series. The U-1 1/2-B was used as an employee Christmas piece in 1983.
V - is for Visions cookware in both Amber and Cranberry, though I know of at least 1 piece of White Visions; the "Chicken Fryer" with the waffle bottom. (
V-12)
W - is for the infamous Wheat pattern on the P series Corningware pieces. Intended as the original design for Corningware, since market research test pieces had been well received, haste to bring the product to marked forced the Cornflower design to be used instead. It appears to have been revisited later; being manufactured between 1962 and 1970. Thought to be an exclusive of the Bon Marche in Seattle, WA. It may have been sold by other "discounter" stores such as Fred Meyer (
also in the Pacific NW).
XYZ - are for the ones that you eXamine and ask yourself whY you cannot find a mark on them. They are more than likely Generation Zed. French White II falls into this category, as there are no actual model numbers on the modified French White design released in the late 90's just as Corning Consumer Products was sold to Borden, Inc. which later reorganized into World Kitchen, LLC (and more recently into "Corelle Brands") began peddling stoneware facsimiles of the original French White. Some of the smaller original style French White ramekins fall into this category as well..... The 4oz and 7oz sizes are an excellent example.
Now you know your Corning Ware A B Cs, next time won't you sing with me......
Where is your Corning Ware??
~~
They are shaped similar to French White II, in that they have flared rims and the glass lids are decidedly different than any previous lid produced by Corning, as they fit down inside the "flare", just like the French White II lids. (please note, that the handles of the Casual Elegance lids are different than the French White II lids.)
Unlike French White II, however, the rims of the Casual Elegance Line have embossed designs on them. I know of three different designs in this product line... Though at least one of the "books" specifically states that there was only one design in this shape.
as well as various other Round and Oval pieces such as L-20, L-22 & L-23 (Round) and the L-30 & L-31 (Oval). I currently have no other information on what volume measurements these pieces have.
The Broil and Bake Platters are embossed with an H-Series instead of "L", my assumption is because the L-15 was already used on the Open Roaster. 
Both Calypso & White Flora are oval in shape (H-14 & H-16)....
